| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to a method of producing a compound of formula I: or salt thereof, where: y equals 0; R1 and R2 are taken together to form a 3-tetrahydrofuran ring; R9 is hydrogen; R10 is 5-oxazolyl; R11 is a methoxy-, ethoxy- or isopropoxy group; each V1 is independently selected from halogen, NO2, CN, OR12, OC(O)R13, OC(O)R12, OC(O)OR13, OC(O)OR12, OC(O)N(R13)2, OP(O)(OR13)2, SR13, SR12, S(O)R13, S(O)R12, SO2R13, SO2R12, SO2N(R13)2, SO2NR12R13, SO3R13, C(O)R12, C(O)OR12, C(O)R13, C(O)OR13, NC(O)C(O)R13, NC(O)C(O)R12, NC(O)C(O)OR13, NC(O)C(O)N(R13)2, C(O)N(R13)2, C(O)N(OR13)R13, C(O)N(OR13)R12, C(NOR13)R13, C(NOR13)R12, N(R13)2, NR13C(O)R12, NR13C(O)R13, NR13C(O)OR13, NR13C(O)OR12, NR13C(O)N(R13)2, NR13C(O)NR12R13, NR13SO2R13, NR13SO2R12, NR13SO2N(R13)2, NR13SO2NR12R13, N(OR13)R13, N(OR13)R12, P(O)(OR13)N(R13)2 and P(O)(OR13)2; where each R12 is a monocyclic or bicyclic ring system consisting of 5-6 members in each ring, where said ring system optionally contains up to 4 heteroatoms selected from N, O or S, and where CH2 lying next to said N, O or S can be substituted with C(O); and each R12 optionally contains up to 3 substitutes selected from R11; where each R13 is independently selected from H, (C1-C4)-straight or branched alkyl or (C2-C4)-straight or branched alkenyl; and where each R13 optionally contains a substitute which is R14; where R14 is a monocyclic or bicyclic ring system consisting of 5-6 members in each ring, where said ring system optionally contains up to 4 heteroatoms selected from N, O or S, and where CH2 lying next to said N, O or S can be substituted with C(O); and each R14 optionally contains up to 2 substitutes independently selected from H, (C1-C4)-straight or branched alkyl or (C2-C4)-straight or branched alkenyl, 1,2-methylenedioxy-, 1,2-ethylenedioxy group or (CH2)n-Z; where Z is selected from halogen, CN, NO2, CF3, OCF3, OH, S(C1-C4)alkyl, SO(C1-C4)alkyl, SO2(C1-C4)alkyl, NH2, NH(C1-C4)-alkyl, M((C1-C4)alkyl)2, COOH, C(O)O(C1-C4)alkyl or O(C1-C4)-alkyl; and where any carbon atom in any R13 is optionally substituted with O, S, SO, SO2, NH or N(C1-C4)alkyl; where said method includes a step for reacting a compound of formula II with a compound of formula III in a polar or nonpolar aprotic, virtually anhydrous solvent or mixture thereof, and optionally in an acceptable base selected from an organic base, inorganic base or a combination of an organic base and an inorganic base; and while heating the reaction mixture to temperature ranging from approximately 30C to approximately 180C for approximately 1 to 48 hours in a virtually inert atmosphere: where: LG is -OR16; where R16 is -(C1-C6)-straight or branched alkyl; -(C2-C6)-straight or branched alkenyl or alkynyl; or a monocyclic ring system consisting of 5-6 members in each ring, where said ring system optionally contains up to 3 heteroatoms selected from N, O or S, and each R16 optionally contains up to 5 substitutes independently selected from (C1-C4)-straight or branched alkyl, (C2-C4)-straight or branched alkenyl or (CH2)n-Z; n equals 0, 1, 2, 3 or 4; V1, y, Z, R1, R2, R9, R10 and R11 are as indicated above; and provided that R16 is not a halogen-substituted (C2-C3)-straight alkyl. ^ EFFECT: improved method. ^ 19 cl, 1 ex |
